Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s acquiring Centessa Pharmaceuticals, which is working on orexin receptor 2 agonists for conditions like narcolepsy and idiopathic hypersomnia — forms of daytime sleepiness.

From MarketWatch • Mar. 31, 2026

When this brain region becomes too active, it can actually trigger sleepiness instead, creating a delicate balance between sleep and alertness.

From Science Daily • Mar. 30, 2026

Among patients who received a high dose of the drug, 12% reported sleepiness, compared to 6% on placebo.

From Barron's • Dec. 31, 2025

But such feelings of exhaustion and sleepiness are not being experienced equally.

From Salon • Dec. 9, 2025

Long and narrow they were, with a dark sleepy look in them, and in the middle of that dark sleepiness a wakeful light glittered like a jewel.

From "Mary Poppins" by P. L. Travers