Mine ran hot & I was terrified of overheating her for reasons unrelated to being a FTM.
We ended up co-sleeping because I'd pass out while nursing her at night, though we eventually transitioned to a bassinet in our bedroom and then the crib 'til she was 6 months old and got her first cold.
One of the things that helped when it got cooler was putting a flannel sheet on her mattress.
BabyBearsMom upthread suggested the PBK chamois sheets, but I bought these: http://www.amazon.com/Tadpoles-Organ...nel+crib+sheet
3 years later, they are still in good shape ... but my daughter rarely slept on them!
==========================================
Liz
DD (3/2010)
"Make mistakes! Get messy!" - Miss Frizzle