JIMMY, the only official dealer in Italy, could not be missing among the promotions for Black Friday 2021 with many products for "advanced" cleaning of the house
JIMMY promotions on Amazon
JIMMI Italia is Amazon's direct supplier, so many of the products are "Sold and shipped by Amazon"
From 22 to 29 November on JIMMY official Amazon store the whole range will benefit from discounts and promotions.
Some examples:
Amazon.it 
JIMMY promotions Official site
Sul official website JIMMY Italy, from 22 to 29 November, 10% discount on all products of the JIMMY range (accessories excluded), you can also use our coupon XTJIMMY5 for an additional discount.
From Wednesday 24 it will be launched on the site a Mini-Game that will allow you to receive discounts or accumulate points to win a HW8 Pro and other prizes.
It will be possible to return to play every day and get additional possibilities by sharing the promotion on social networks.
The 5 people who have scored the most points will win these prizes:
1. JIMMY HW8 Pro Cordless scrubber dryer
2. JIMMY JV53 Cordless Electric Broom
3. JIMMY JV35 Portable aspirator with UV sterilization
4. JIMMY AP36 Air purifier
5. JIMMY T6 Sonic electric toothbrush
The regulation is available on THIS PAGE of the promotion, which will be active from Wednesday 24.
Just use Keep to see that the prices were inflated before Black Friday, I don't know why you are publishing these offers.
Honestly, I don't see any spikes from the previous days, although obviously it is possible that they have been on offer in the past as well.
Even H8 Pro, HW 8 and HW8 Pro are even at an all-time low
Just the JV85 and JV83 have increased in the last month and a half, but not in a day.
What product were you referring to exactly?