Sleeping through the night

Melina just started sleeping through the night at around 2.5 months. Technically, "sleeping through the night" means they sleep five hours in a row. The first time she "slept through" was when we were camping out at the Oregon Country Fair; at that point she slept until 4:00 am a few times, which was new territory. Then when we went camping last week in the North Cascades she started sleeping until 6:30 a.m.! She's backtracked to 5:00 a.m. now, but that's a huge improvement over being woken up several times a night. After I feed her at 5:00, she goes right back to sleep until 8 or 9. Maybe we should go camping more often so she'll sleep all the way through. It seems to agree with her.