If you're concerned that your sleep is too shallow, you may have sleep apnea syndrome?! And it could lead to hardening of the arteries, heart failure, or high blood pressure...?!
Use a tape recorder or something.
استخدمي مسجّلاً صوتياً أو ما شابه
Kassettenrekorder oder so ...
Utilise un magnétophone.
Registratevi o cose così.
Use algo para gravar.