more importantly your LID.
If it doesnt have a 'lock' when closed (and 99% of laptops dont), you risk cracking your lovely screen! bounce is worse than drop-stop .... because its increasing the amount of movement your lid will go through, not just a 'close' but a 'close-open-close' (bounce once).
repeated lid closure may result in weakning and/or damage to lid/screen/lid hinges.
Many people that have anceint laptops will tell you that their lid dont close flush - due to repeated open-close pressure when you use fingers in the middle section at the top of your lid ... its like cadburys creme eggs ... how do you eat yours!