My 6 month old baby son has just learnt to roll over from his back to his front and now he does it whenever I put him on his back - even when he's in the cot with a sleeping bag on! The problem is he can't roll back so 5 minutes after putting him down for a nap there is frantic screaming and I have to go and roll him back over again! In desperation we've put him back in the Moses Basket, which he can just about squeeze into, but this is obviously a very short term solution. Has anyone got any better ideas? He normally sleeps in a cotbed.