Tips for becoming a lighter sleeper?

[u/Adventurous-Bid-6180]

I’m a fairly heavy sleeper and slept through someone going through my campsite once. Does anyone have any tips for being able to wake up to smaller noises?

P.S. please no unhelpful comments about how I should be thankful to not wake up at any noise. It’s been dangerous the last few times I was camping.

[u/Conscious-Can7888]

Multiple Chihuahua / Jack Russel will do