Make sure your child gets a good night's sleep the night before. It helps to avoid being sleepy and overtired.
Reduce liquids after an early dinner, and avoid foods and beverages that may be salty or have high-caffeine contents. Salty foods will make your child thirsty, and caffeine is a diuretic that will increase the amount of urine that is made – two things you will want to avoid during the trip.
Have your child wear a disposable undergarment like GoodNites.
Oversized nightshirts, nightgowns, bulky pajamas or other layered sleepwear will help cover the GoodNites. My kids will sometimes cover the GoodNite with regular underwear or with boxer shorts if they worry that it might be noticeable.
Bring a gallon-sized zipper-sealable bag and a small opaque trash bag for each GoodNite. The bag with the seal will keep the odor down and the opaque trash bag can be used to conceal the contents if it is to be thrown away at the event.
I make up a small overnight bag about the size of a large makeup case or shaving case that has a small flashlight, one or two rolled up GoodNites and some moist wipes to clean up. I usually include an extra nightshirt, underwear and a GoodNite in case my daughter wants to include a back up. This can make getting ready for bed fast and discrete or it can be used in the middle of the night if needed.
Tell your child to try and pick a sleeping spot that is closest to the door, just in case.
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