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

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Notes from a Native English Speaker

Comparative adjectives help us to describe how good or bad something is when compared to something else. For example, something is taller than something else. Superlative adjectives help us to describe something as having the most or least of a particular characteristic within a group. This makes it easier and more accurate to talk about and compare things.

What is the comparative form of “sleepy”?

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

Example

I feel sleepier today than I did yesterday.

Example

The baby is sleepier after a long day of playing.

What is the superlative form of “sleepy”?

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

Example

Among all the children, she is the sleepiest.

Example

After a long week, Saturday mornings are the sleepiest.

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 commonly used. 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: SleepySleepier Superlative: SleepySleepiest

Expressions with similar meanings to “sleepier”

Used to describe a state of sleepiness or tiredness

Example

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

A slightly more general way of expressing increased sleepiness

Example

The long hike left her feeling more tired than she had expected.

Used to indicate a deep sense of exhaustion or fatigue

Example

After a long day at work, he was weary and ready for bed.

Expressions with similar meanings to “sleepiest”

Similar to sleepiest, this emphasizes a state of extreme sleepiness

Example

After pulling an all-nighter, he was the drowsiest person in the room.

A slightly more general way of expressing the highest level of sleepiness

Example

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

Used to describe the highest level of exhaustion or fatigue

Example

After running a marathon, he was the weariest he had ever felt.

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: "He is sleepier than his sister." Here, than is used to show that the level of sleepiness of 'he' is greater than the level of sleepiness of his sister.

How can I use this expression in context?

“sleepier” and “sleepiest” can be used in a variety of situations to compare speed.
  • 1Children

    The baby is sleepier after a long day of playing.

    The baby is sleepier after a long day of playing.

  • 2Tiredness

    I feel sleepier today than I did yesterday.

    I feel sleepier today than I did yesterday.

  • 3Exhaustion

    After a long week, Saturday mornings are the sleepiest.

    After a long week, Saturday mornings are the sleepiest.

  • 4Fatigue

    After running a marathon, he was the weariest he had ever felt.

    After running a marathon, he was the weariest he had ever felt.

  • 5Relaxation

    The cozy bed made her feel sleepier than ever.

    The cozy bed made her feel sleepier than ever.

Related idioms and phrases

Hit the hay

To go to bed or go to sleep.

Example

After a long day at work, I can't wait to hit the hay.

Catch some Z's

To get some sleep.

Example

I'm going to take a nap and catch some Z's.

Sleep like a log

To sleep very deeply and soundly.

Example

After a tiring day, I slept like a log.

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