Our 18 month old ds loves his bed. Hes always been a good sleeper and upon waking either in the morning or at nap time, will happily play in his cot for an hour or more before we get him up - he will make it very clear if we go in too early that he is happy where he is so unless we have to be somewhere we let him get on with it.
Similarly for nap times, if I see he is starting to look tired I will say 'do you want to go to bed for a nap'? He will rush over to the stairs and start making his way up.
However he will still lie and play in his cot for an hour or so before he actually falls asleep. This morning I took him up at 9.30 it's now 10.30 and hes just lying on his side playing with one of his tesdies.
Should I be doing more to try and get him to sleep sooner? I've never been one to rock to sleep or stay in the room as been keen for him to self settle and he seems very happy but I'm worrying I'm creating problems further down the line.