Words that start with 's' and contain 'epr'

What's the highest scoring word you can play in Scrabble ?
For 12 points in Scrabble, you can play 'sleepry'.

In total, how many words are available using the combination of letters requested?
On this list of words starting with 's' that contain 'epr', you have 26 amazing combinations that are possible in total.

What's the longest word you can make with words that start with 's' and include 'epr'?
The longest word derived by Dictionarypedia is 'steprelationship'.