yes!! I regularly stay up at night watching tv or browsing the web or cleaning the house or doing random projects while ds and dh sleep! I ahve learned to get by with less sleep since becoming a mom and I really need that "me" time to recharge. DH is always like- don't stay up too late- because then I am tough to get out of bed in the morning! but yes, me time in trade for sleep.
This is totally me too. Though I'm still in the learning phase of coping on less sleep. I'm the type of person that used to need around 9 hours a night to be functional. I'm lucky to get six now. I've had my son for two and a half months, and I think adrenaline has gotten me this far. Now that the adrenaline is wearing off... I just hope something else kicks in. It would probably make sense for me just to drop internetting or reading before bed, but I can't. I get really grumpy if I don't get a chance to do something little just for me.