Learn how to use the comparative “sleepier” and superlative “sleepiest” with example sentences and differences.

What is the comparative form of “sleepier”?

The comparative form of “sleepier” is “sleepier”.

Example

I feel sleepier today than I did yesterday.

Example

The baby became sleepier as the night went on.

What is the superlative form of “sleepier”?

The superlative form of “sleepier” is “sleepiest”.

Example

Among all the children, he is the sleepiest.

Example

The cozy bed is known for being the sleepiest place to rest.

Why is this expression not used with most, more?

'Most' and 'more' are generally not used with sleepy, sleepier, and sleepiest. They’re considered regular comparatives and superlatives. The forms 'more sleepy' and 'most sleepy' are not used because they sound awkward. Instead, sleepier and sleepiest are the correct and preferred forms to use.

Does this expression have an irregular comparative/superlative form?

Sleepy does not have an irregular comparative or superlative form. It follows the standard pattern for forming comparatives and superlatives. So, to summarize: Comparative: Sleepy → Sleepier Superlative: Sleepy → Sleepiest

Expressions with similar meanings to “sleepier”

drowsier

Used to describe a state of being sleepy or tired

Example

After staying up all night, she felt drowsier than ever.

more tired

A slightly formal way of expressing increased sleepiness or fatigue

Example

The long day at work left her feeling more tired than usual.

Expressions with similar meanings to “sleepiest”

drowsiest

Similar to sleepiest, this emphasizes a high level of sleepiness or tiredness

Example

After the long hike, they were the drowsiest group in the camp.

most tired

A slightly formal way of expressing the highest level of sleepiness or fatigue

Example

The exhausting trip left her feeling most tired she had ever been.

Using than with comparative “sleepier”

When using the comparative form sleepier to compare two things, you would use than to connect the two parts of the comparison: Example: "I am sleepier than my friend." Here, than is used to show that the level of sleepiness of 'I' is greater than the level of sleepiness of 'my friend'.

How can I use this expression in context?

“sleepier” and “sleepiest” can be used in a variety of situations to compare speed.

• 1. Morning Routine

  I always feel sleepier in the morning.

  I always feel sleepier in the morning.

• 2. Nap Time

  The baby became sleepier as the lullaby played.

  The baby became sleepier as the lullaby played.

• 3. Late Nights

  After studying all night, she felt sleepier than ever.

  After studying all night, she felt sleepier than ever.

• 4. Cozy Environment

  The soft pillows and warm blankets made the bedroom the sleepiest place.

  The soft pillows and warm blankets made the bedroom the sleepiest place.

• 5. Tiring Activities

  After the long hike, they were the sleepiest group in the camp.

  After the long hike, they were the sleepiest group in the camp.

Related idioms and phrases

Hit the hay

To go to bed or go to sleep.

Example

I'm exhausted, it's time to hit the hay.

Count sheep

To imagine counting sheep jumping over a fence as a way to fall asleep.

Example

If you're having trouble sleeping, try counting sheep.

Sleep like a log

To sleep very deeply and soundly.

Example

After a long day of work, he slept like a log.