DS is 5.5 months, he normally sleeps (waking every 2-3hrs) on his back in a side car cot until about 3/4am when he won't go back to sleep, so I cuddle him in bed with me where he seems happiest on his side (just me and him in a double bed) and I don't get much sleep after this.
Tonight, he was having a bad time going to sleep so decided to try him in his cot. There's been a bit of a crying, picking up, cuddling, putting down routine but twice he's fallen asleep on his side, with his legs up (like the fetal position).
Is this an ok position for him to be left in all night? The mattress which we bought new from mothercare - seems quite bouncy although it's not memory foam. He can't roll onto his tummy yet and when we do tummy time he's not quite able to put his arms under his head but he can lift and move his head.
I'm worried that I'll be up all night worrying or worse, I'll be asleep from sleep depravation and won't know if anything has happened!