We keep late hours.

Up a little late?

You're up late.

He often stays up late at night.

He always sits up late at night.

Total night owl.

Another long night?

She is in the habit of keeping late hours.

He is in the habit of sitting up till late at night.

I am used to sitting up late.

I am used to going to bed very late.

I'm used to staying up late.

That's just 'cause I purposely stay up too late.

He sat up late at night.

He stayed up late.

I sat up reading till late last night.

I am accustomed to staying up late.

The night was far advanced.

He is used to sitting up late at night.

You ought not to sit up so late.

He fell into the habit of keeping late hours.

You shouldn't stay up so late at night.

He is in the habit of staying up late at night.

You must not stay up late.

Staying up late nights is nothing to me.

He is accustomed to sitting up late.

It'll do harm to you to sit up late every night.

You ought not to stay up so late.

I usually stay up late.

I had... a bit of a late one.

He makes it a rule to sit up late at night.

Mary stayed up late last night.

I am used to sitting up late at night.

I am used to staying up late at night.

I'm not used to staying up late at night.

I'm not used to staying up late at night.

But that's how I feel when I'm with you

I shouldn't have stayed up so late last night.

He often reads far into the night.

The burglar is used to staying up late.

He will not permit his children to sit up late.

I am not used to sitting up late at night.

I am not used to staying up late at night.

Look sharp, Tom, Don't want to be caught out of bed after hours

You must not stay up late, or you will hurt your health.