Not everyone wears pajamas or a nightie. Some people sleep naked or only wear knickers or underpants. Therefore, what you wear in bed is entirely up to you.
That is absolutely none of your business!
Some wear pyjamas, some wear boxers and shirt, some sleep shirtless..why? Because they like it and as long they are fine with it. It depends mainly on temperature. I don't think they sleep shirtless in the base camp of Mt. Everest or in the Antarctic polar station or in winter in unheated rooms.
U can only get a shirtless sim IF hes a boy. To have him shirtless, go to clothing, then click swim-wear or sleep-wear. Find an option that has blank skin. There's ur shirtless sim! (U can have a shirtless girl sim if u count having a bra as no shirt.)
If you're a guy it's fine if you want to exercise shirtless. I'm a teen and I exercise shirtless all the time.
They can, just not in a sexy way
Well, isn't that a fun question! Boys, just like anyone else, can choose to sleep however they feel most comfortable. Whether they prefer to sleep shirtless or not is entirely up to them and what makes them feel cozy and relaxed. It's important to respect everyone's choices and let them be themselves.
You don't.
Go to sleep with like boxers
No not at all, be proud of the skin you're in.
Go onto photo bucket and type in 'Taylor lautner shirtless' and it should come up.
there is pick's of him shirtless
Yes I do. I have since I was 10 or 11 especially in the summer time. If I did go to bed with a shirt on it was a tank top, but usually ended up taking it off. I hated it when it would bunch up underneath me (when sleeping on my stomach) A shirt with sleeves is just too confining and it became irritating. Not having to wear a shirt is one of many great things about being a man.