SSD and sleep mode?

I got this email today claiming that sleep mode is hard on a SSD.
I could understand that hibernate is hard on a SSD, but sleep mode?
My system sleeps maybe a dozen times a day. It's asleep 90% of the time.
Save the planet and all...

Is there any truth to this? Or is it just a scare tactic to
get me to pay for a free tool?

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Today the new version SSD Fresh 2019 is released. Besides a revised
program interface and several improvements it also contains a great new
feature.

The new function is called "disable sleep mode" and lets your SSD live
much longer. Windows writes the contents of the working memory to the
hard disk each time you switch to sleep mode and back again as soon as
the PC wakes up. Between 2 and 8 gigabytes of unnecessary data are
written to the hard disk per process! Since SSD hard disks are very fast
anyway, this process is not necessary, but it shortens the life span of
the hard disk enormously.