S sounds in "night's sleep"

[WilliamTaft]

An audio example using "decent" in Longman Advanced American English Dictionary (retired).

I just heard one S sound, long and strong.

Do you hear one or two?

 

[teechar]

I just heard one S sound, long and strong.

That's how it should be. This is called linking.

Linking in English – Pronunciation Video

In spoken English, words are often pronounced together, without a space between words. Learning how words are linked can help your speaking and listening.

www.oxfordonlineenglish.com

Do you hear one or two?

If by two you mean two "s" sounds with a schwa in between, then no; that's not how "night's sleep" pronounced.

 

[mohammedabo]

I think......
I need a decent night sleep.
She put stress on the first syllable of sleep and put a stress on the words decent and sleep .

Vocaroo | Online voice recorder

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[emsr2d2]

She put stress on the first syllable of sleep

"Sleep" has only one syllable.

 

[mohammedabo]

So, does it have only one s or 2 ses (s+s) sound?
do I say it correctly?

 

[teechar]

So, does it have only one s or 2 ses two s (s+s) sounds?

do I say Have I said it correctly?

See above.