For the majority of people, however, carbohydrates can cause sleepiness.

Insomnia can cause excessive daytime sleepiness and lack of energy.

Taking wine along with sedative medications might cause too much sleepiness.

Taking large amounts of hops along with alcohol might cause too much sleepiness.

Lack of sleep causes daytime sleepiness, which can make it difficult to function at work and elsewhere.

Damage to this region, scientists have found, causes excessive sleepiness.

Drugs for various health problems can cause daytime sleepiness.

Using certain medicines that may cause sleepiness, weakness, or dizziness.

It might cause too much sleepiness if combined with medications used during and after surgery.

Some antihistamines can cause sleepiness, but they may help with scratching while sleeping.