The surprising reason you shouldn’t make your bed right away
Experts recommend delaying bed-making in the morning to decrease allergens and promote a healthier sleeping environment. Research indicates that dust mites do not survive as well in the warm, dry conditions of an unmade bed. Using a computer model, scientists tracked how changes in the home can lower dust mite numbers in beds, which can house up to 1.5 million dust mites. These findings highlight how a simple habit, like leaving your bed unmade for a while in the morning, can be greatly beneficial for your health.
Source
Ridley, I., Pretlove, S., Ucci, M., Mumovic, D., Davies, M., Oreszczyn, T., ... & Singh, J. (2006). Asthma/Dust mite study-Final report. Building Research Technical Report 7/2005, Department for Environment, Food and Rural Affairs.
Additional Reading
https://lifehacker.com/don-t-make-your-bed-first-thing-in-the-morning-1850072218