I'd say take your own pillow, try and rest and eat well before the date so that you have plenty of energy and yes it can be boring so stock up on whatever you want to get you through 2-3 days of hanging around. Stay as mobile as possible. Take nice food as hospital food can be yuck and you will need energy when the time comes. Try not to be tense. I was terrified the first time which I think made it worse.