dddd

Here is your answer:
"It is expected that members will wear the garment both night and day, according to covenants made in the temple.  Members should not adjust the garment or wear it contrary to instructions in order to accommodate different styles of clothing, even when such clothing may be generally accepted.  The garment should not be removed either entirely or partially, to work in the yard or for other activities that can reasonably be done with the garment worn properly beneath the clothing.
Members who have made covenants in the temple should be guided by the Holy Spirit to answer for themselves personal questions about wearing the garment.  These sacred covenants are between the member and the Lord, and the proper wearing of the garment is an outward expression of an inner commitment to follow the Savior Jesus Christ."
 
I agree with Omega.  The answer to your question  is do not sleep naked if you are endowed.

Well now you know. 

1. It's a fair question, even if your posting and rhetorical style is turning a lot of people off here.
2. It's hard to google up a relevant answer on temple-related questions like this.
3. When it comes to temple-related questions, a better source of answers will be your bishop, or ministering folks, or buddy in your home ward a bit more experienced.
4. All that said, no, it's not ok to sleep without the garment.  That would be a violation of the covenant you made in the endowment.  Think of the four "S" words: Swimming, sports, showers, sex.  If you're not doing one of these, your garments should be on.
Happy being endowed!
[edit: I suppose it's possible to be doing more than one of those at the same time.]
[edit two: It may have been possible for me at one time to do three at the same time, but I'm afraid I'm not that young any more.]

A person should be married to someone who is a high quality person, who will be a high quality spouse and supportive of them (emotional,y spiritually, etc).  This would-be marriage should be someone the Lord approves of, as confirmed by prayer and listening to the Spirit.  A person should NOT just get married to a random because they are getting older or desperate.  
Notice: I did not say that anything about them being LDS above.  Frankly, there are some LDS folks who aren't supportive in spiritual matters, or other wise won't make a high quality supportive spouse.  There are indeed non-LDS folks who can be supportive an LDS person, including being supportive of their faith (I'm married to one myself).  Still, they are rare.  Judge very very carefully, keeping two ears to the Lord at all times.  

My brother-in-law's sister is a gorgeous woman, smart and successful. She didn't get married till she was in her early thirties.  I figure she was a bit intimidating for most guys.  She finally met mr. right and they are are happily married.
And honestly, I would completely ignore those two "prophecies."  I tend to think they weren't prophecies.  Focus on enjoying life.  Have fun.  Have fun dates..   Keep up the good attitude, smile...  you'll find a good man.

I think "Saturday's Warrior" is way more popular than I ever thought.

I agree. When a man truly will do anything to have a woman that's usually when he gets her

You're literally the "RUDE" song. If you were my man I would have dropped you like you're as hot as you think you are

Yeah.  men and women both have difficulty changing.   It takes a concerted effort to do so.  And often it takes the help of loved ones as well. 
There are many good fish in the sea.  In time you will go fishing again and catch a better fish....  Or he'll catch you...

Oh my. This actually perturbed me. I don't know what I'd do if one of my children did this to me. I think I'd ask for a refund on everything they used while mooching off of me.
It seems very selfish in nature and very irresponsible. Almost like they wanted sexual legitimacy while denying the rest of the responsibility of a married couple.
Definitely a thumbs down from me  :C

I told my wife that I thought the tradition of asking the father's permission was absolutely ridiculous, and if the father said "no, you can't marry my daughter" I would say to his face, "Too bad" and walk out.

What does a father have to do with who their daughter marries? We have some close friends that love each other so much and the girl's father keeps saying that he can't marry the daughter. After over a year of pestering, they finally decided to ignore the dad and just get married.
Skip the dad bit haha

I found myself the same way before my mission.
I would NOT recommend dating non-LDS guys. Friends, sure. But from how painful my experiences were, no.
First of all, I was surprised that there were LDS guys that were willing to keep the law of chastity. Men are attracted to women with self confidence and standards, and the laws of God tend to do that for a person, so I never had a guy give me a hard time about that. One thing that helped were my friends. They were all over the guy saying, "You KNOW she's not gonna do anything right?" so that helped. However, because they were ok with me keeping the law of chastity it made me not feel so bad about dating them. {However...you are not equally yoked already with this person in that regard. If you do slip up and have chastity issues, you are going to feel guilty while they won't feel as guilty and as big of a need to correct the problem as you do. Also, if you break the law of chastity, the blame is on you. You would have been a poor example to them and it could hinder their desire to feel the Spirit and learn more.}
Second, I also found that (sorry LDS guys!!) but non-member guys will tend to treat you better. I think there is just a lack of quality women in the world so when they find one, they make sure to treat her right rather than just like another date. They want to hold on.
Third, I felt like non-members would not be marriage hungry like LDS guys. I always knew I was going to serve a mission, so I think I dated non-members as a way to avoid marriage. WRONGO. I think as a result of the first and second point I made, all three of the boyfriends I had before my mission became very preoccupied with marriage, in spite of since the onset of the relationship telling them that I would never marry outside of the temple and didn't see our relationship going that way.
Fourth, Elder Costa did not give that talk intending to tell our girls to go snare a boyfriend to baptize. Anytime you enter into a relationship and place an expectation on them to change, you are essentially being mentally/emotionally abusive. It's also very unwise for you to date someone hoping they will change as they can put on a good face at first and then reveal their true colors later on when it's too late.
Along that line, the more pressure you put on him to change, or to investigate the Church (which CANNOT come without repentance and change) the more the man you are dating will feel that pressure and tend to go the other way.
I may sound harsh but I gave my personal experiences. I dated an athiest guy while i was preparing for my mission Good guy.. From the beginning I told him verbatim "I would not marry you" and he told me what he was looking for in a marriage partner and it was so clear we weren't a fit and he wasn't looking to get married ANYTIME SOON. But it was clear we liked each other and wanted to spend time with each other. So we started dating and soon we were boyfriend and girlfriend. And then he started pushing marriage on me a lot. He told me (after three weeks!!) that if I didn't have my papers in to serve a mission by December we would get married. And I was in lala land and stupidly agreed and then freaked out. But I felt like I couldn't break up with him because he was investigating the church...he started to. I had never pushed him to learn at all, I just was myself and he expressed interest. And I justified things as well and told myself that at least while he was with me he wasn't breaking the law of chastity or drinking, so he was better off with me. I did turn in my papers around the same time he set a baptism date. I went to the MTC and waited that first PDay for a letter from him telling me how his baptism went, only to find out he had dropped his date and was no longer speaking to missionaries. I was the most heartbreaking thing in my life. He never joined the church, started drinking again, and later moved in with a girlfriend. That tore me apart. I've since dated and broken up with LDS guys, and have been shocked at how much less painful and how much more quickly I can recover from heartache compared to non-LDS guys.
I mean, you may ignore everyone's advice. I just say it because I was in so much pain and I had a comp towards the end of my mission go thru the same thing and it broke my heart to see her struggle.
Just be careful. When I met one of the guys I dated I thought, "I would be friends with him, but I don't think he would ever like me." and then there was mutual interest. And I thought, "I like him, flirting with him, but I'd never go out with him." And then he asked me out. And I thought, "Ok, I'd go on a date with him, but I'd never be his girlfriend." And then he started calling me his girlfriend. "Ok, so I'm his girlfriend, but I'll never marry him." And it came to the point where I had a one way ticket booked to go back to him and we were gonna get married. He turned out to be very abusive emotionally and mentally, but I fed into that when I said I wanted to marry him but only if he joined the Church. He was one of the people that put on a good face but was not a person I would have dated had I known.

I highly doubt these attractive and scantily clad women went and all decided to send friend requests to your fiance all at once. I guarantee he was purposefully friending attractive women, if only to look at their pictures.
Maybe suggest getting a combined Facebook page? If he doesn't care about making you secure in the relationship he is probs hiding something. 

I have negatives experiences with men saying they would make changes for me and in my experience they don't hence my choice to not progress the relationship.

Thank you for your responses. I will set up a time to speak with the Bishop. I really appreciate all of your help. I will pray a lot over the next few weeks. 

That's a very sweet dream. If you haven't already you should definitely tell her! I bet it would warm her heart!
And she wounds like a beautiful woman inside and out. I love hearing stories like that.

Keep in mind that temple marriage is NOT a covenant between you and your husband to be faithful to one another. It is a covenants between you and God and him and God and within that covenant are MANY promises made, many of which contain the promise to be faithful to one another. 
So the idea of you two choosing each other is only a small part of what is happening in the temple marriage. While being sealed, you will be looking at the sealer, not each other, when you say the infamous “yes” 
Sex has two purposes. To bring a husband and wife together, and to have a family. It is NOT to be used as tool to bringing two friends together, two lovers together, two fiancés together. It is to be used to strength the bond of a couple have already made the necessary Covenants with God.
I recommend the following. Talk to your bishop, participate in temple sealings for the dead and learn about the covenants you will make in marriage.

Translating this into English, we get: "We've broken it short of intercourse, but don't want to face that fact."
IMO, go see your bishop(s) who can help you understand the seriousness of it.  Perhaps right after you go get a civil marriage to ensure you don't sin further.
I have also found that a detailed study (which is not the same as "reading scriptures", and which includes pondering, note taking, and more pondering) of something you think you understand will give you greater understanding.

One reason, is because until the covenant is made, there isn't a covenant in place.   Up until that moment, either party is fully able to back out of the deal at any time, with or without reason.  And it happens.  

You couldn't have told me that a week ago?

Sup CMGirl,
If you don't love him for who he is right now don't marry him. You can't change anyone and stuff that annoys you now will only get 100% more annoying after marriage. Stop comparing your exes to your current bf (not only for this guy but also your future bf) EVERYONE is different and everyone has strengths and weaknesses. Instead of stringing him along you should let him find a woman that loves him for who he is. You should find someone you REALLY want to be with. When you are ready for marriage you will know and push full speed ahead. It won't even be a question in your mind and if it is it will be very brief before you squash it and commit. I think you already know the answer deep down inside. Just follow it now.
tl;dr - stahp - If you are annoyed with him now it won't get better after marriage. Release him!!!! and find someone you are happier with.

Your wife and her cheating isn't the most important issue here.  Or your cheating on her- also not the most important issue here.
What IS the most important issue is how badly you have betrayed Christ, your savior.  Before you can fix your marriage, you need to fix your relationship with Christ and let His healing overcome you.  This current man you are- the cheating addict- needs to be washed away and you be reborn- reborn as the honorable husband, father, breadwinner, and disciple of Christ.
Focus first and foremost of coming to Christ and surrendering your sinful ways to Him.