Trapped

In the near distance, you see a cave large enough for you to sleep in. You make yourself a tiny hole in the sand to rest in. You hear some weird noises and you just assume that the sounds are coming from outside.
You think to yourself "All I need is a good nights rest, after that everything everything will fall in place from there."
After a while the sound makes you a bit worried as it had gotten worse. Do you decide to leave the cave and search for another place to sleep, or do you ignore the sound and focus on getting a good nights rest?