DS (7.5 months) has always been a relatively early riser - he's always awake by 6.30am, and as he's got older it's becoming more like 5.30am. However, every time he stays at either of his grandparents' houses, he sleeps far later - never wakes up before 6.45am, and usually sleeps until 7.15am or beyond.
Obviously, an extra hour or two's sleep at home would make a big difference to us (and to him, I think), and we're desperate to work out why he sleeps so well when he's away. There's no (consistent) difference in terms of light or noise - one granny's house is a bit darker and quieter, but the other one is far lighter and quite a bit noisier. The only thing I can think of is that the cots are quite different - ours is a spacious M&P job with expensive sprung mattress, while both grannies have a cheapo small cot with foam or basic sprung mattress. As a result, DS seems to move about a bit less in their cots - he doesn't roll over and shuffle about so much.
Has anyone experienced anything similar to this, or got any theories? And if it is the cot, can anyone suggest a way to get an active 7.5 month old to move around less in bed, without frustrating or suffocating him? I tried rolled up towels down the side of the cot, but he just pulled them over his head . Also, I've seen little bolsters that the baby lies inside to stop them rolling, but I think they're for younger babies??
Any help much appreciated!