My 4.5 month ds went for weeks struggling to nap for long, always fully woke up in light sleep after 45 mins.Put blackout blind and curtains in room, and over many weeks started sleeping good 2 hours with occasional cry out. Never sleeps for long in pram, and wakes when stop pushing, even though still tired. However I am getting increasingly nervous about him getting used to sleeping in dark, as far as visits to relatives, holidays etc. But cannot see him having the same good sleep in broad daylight, and obviously do not want to deny him this. All relatives live away and this has already caused conflict with mum who cannot understand need for quiet dark room. She thinks he should sleep anywhere if tired, but I see how ratty he gets if he's not had a proper sleep. Dark room also got him to sleep till 7, 7.30 instead of 6. Getting upset with mums comments like "he is always shut in his room in dark and never sees light of day"! and she thinks i am making a rod for my own back. Don't know what to do for best!! Would welcome any advice for and against!!