College dog, going out to work part-time on weekends, is very troublesome. After long-term practice, the summary method is as follows. First of all, the premise of all this is that you can't stay up late. I slept like a log. If I stay up late, I won't wake up the next day anyway ... so not staying up late is the premise.

The wake-up light read many answers, but did not mention this artifact. It's actually quite useful. It will light up gradually before your alarm clock time, and then simulate the sunshine to wake you up slowly ~ put this on the pillow and it will wake up the next day. It's very effective, and everyone in our dormitory hangs a bed curtain, so the lights won't go out, and it's ok to get up early. Advantages: absolutely quiet and silent. Disadvantages: you must not stay up late! Every time I stay up late, I can't wake up the next day ... and then, it's a little expensive.

2. Let the alarm in the earphone ring. Recommended software Monster alarm clock APP "Headphone mode" Advantages: You can wake you up by sound, which will basically not affect your roommate. Disadvantages: you can't guarantee that the headphones are still on your ears after sleeping all night … and it's not very comfortable to sleep with them. And in case the earphone hole is loose or unplugged when sleeping at night, it will be more embarrassing. Method: Consider setting the alarm clock to the maximum, and then put the earphone in the middle of the pillow. So you can basically hear it yourself in the morning without disturbing others.

3. Vibrating bracelet, the most economical one is mi band, which can vibrate the alarm clock. Advantages: moderate vibration sound. Disadvantages: it's really just moderate. If your roommate sleeps lightly, you can still hear it. Yes, my roommate can hear it every time, and then I'm not the kind of person who can feel the vibration. It shook for half a minute before I felt it, but by then my roommate had been awakened by the shock ... Method: I didn't think of it. The feeling is not much different from that of the mobile phone, but it is not as big as that of the mobile phone. Not recommended for sleepy friends.

4. Gloves | socks Put gloves or socks on your hands at night, and put your mobile phone inside, which becomes vibration. Advantages: generally, you can wake up when it rings. Disadvantages: it's too uncomfortable. You may unconsciously take it off after falling asleep at night. ...

5. Drink plenty of water before going to bed. Advantages: you will automatically wake up in the morning and be awakened ... Disadvantages: it is not good for your health ... and you will easily get edema the next day if you drink too much water before going to bed.

6. Ultimate righteousness: Idea advantages: No side effects Disadvantages: The level is too high, which is too difficult for a mortal like me to understand ... and it is uncontrollable, and important things can't be like this. For example, if I work part-time, I dare not rely solely on my brain ... If I oversleep, I'm finished ... and it doesn't apply to bedridden patients. You want to "I'll sleep for another 5 minutes", but when you wake up again, you don't know what's going on tonight ... Method: go to bed early, and then hypnotize yourself before going to bed: I must wake up at X point ... constantly give myself psychological hints ~ You can take a nap or practice when you don't need to get up early.