Hello. I have a 7 week old baby who usually is very alert and awake during the day. Has occasional naps but always on his terms and never any longer than 30 mins. Last night he slept the best he ever has...a 5 hour block wnd a 3 hour block and since 9am has slept ever since! He had a feed around 12 and then nodded straight back to sleep. Should I let him sleep or try and play with him? Sorry if it's a silly question but he's my first and I never know whether I'm doing the right thing