Hi Barry and family, and welcome to The Tortoise Table!
Congratulations on welcoming this lovely little Hermann's tortoise into your home, and even more congratulations on housing him in a tortoise table (so many people are mis-sold vivariums and then have no end of health problems).
First of all, small tortoises do sleep a fair amount, but he (or she) should still be active and eating for a good portion of the day. I wonder if it is a bit too warm for him in the table. Your thermometer is showing what looks like 93F (about 34C) and that is too warm -- not super dangerous as long as he can move away the heat into a cooler area, but you do want it a bit lower (see below).
The one thing I would change if possible in that table is the way the lamp is fixed to the wooden arm arm that holds it (so many tables have these fixed arms, which are a real hindrance to good husbandry). You want the temperature directly under that lamp, and at the height of the tortoise's shell to be about 87F (30C), and at the cooler area of the table it should be about 68F (20C). A digital fridge thermometer with a probe on the end of a long cord is ideal as you can site the display unit outside the table and then hang the cord and probe down into the table so that it is near the circle of light from the lamp. And most of them have a Max/Min feature, so that you can see how hot or cold it got since you last looked. Something like this:
https://thermometer.co.uk/fridge-freeze ... H3EALw_wcB but you can get them in lots of places. I think the Max/Min feature is really important, and you can find thermometers like the one I gave the link to, a bit cheaper but still with the max/min facility (I can send you a link of you need one).
Also those thermometers that are fixed to a wall, even a few inches away from the light, will show a temperature that is cooler than it is directly under the lamp. Ideally you want to be able to raise the lamp to lower the temperature, or lower the lamp to increase the temperature, depending on how warm it is in the room. I find that on hot days I need to raise the lamp up very high, and on cold days I need to lower it to get it warm enough in the table. Many people fix their lamp to a chain that is attached to the arm, a bit like this.
[attachment=0]m_DSC02552.jpg[/attachment]
Or sometimes the arms themselves are adjustable.
I am assuming that your lamp is a mercury vapour all-in-one heat, light and UVB lamp, and if so then it should really be in a reflector shade to protect your eyes. That silver coating on the outside of it will do a lot to protect your eyes from the UVB, but if your daughter's head is below the light and she looks into it then it could damage her eyes, so a shade is always best.
I don't think there is any need to get the forest bark or jungle earth. You have a good looking substrate there (it looks like Tortoise Life), and in the wild they do live on a sandy soil substrate so what you've got is very good. In addition, the bark can grow mould if it gets wet from the water bowl, and it is also a bit of a fire hazard should the lamp blow and hot pieces of glass fall onto the substrate (and you don't really need a different substrate in the sleeping area either).
So, having said all that (and I am so sorry that this is such a long post!) -- I think you have made a really nice looking environment for Turbo. Lots of things to crawl under and over and keep up his interest, so well done to you and your daughter!
Regarding diet. Lettuce has very little nourishment in it, but it does have a fairly high water content, so it will help to keep him hydrated. Tortoises need a low protein/high fibre diet, and they need to grow slowly (if you offer too much food and he grows quickly, then his shell could become deformed). It's good to get into the habit of weighing him every couple of weeks or once a month, and what you are looking for is a weight gain of between 1g - 3g per month (that is just an average, and some months he will grow more and some less), but if he consistently gains a lot more each month then you should cut down on what you are feeding him.
Edible weeds and flowers are the best diet for tortoises, and you can always type in the name of a plant in our database to see if it is edible. You can also use the filter tool produce lists of edible plants for him. Go to this page and scroll down to the section called 'How to Use the Traffic Light Filters' and you'll find instructions.
https://www.thetortoisetable.org.uk/pla ... nZUkFTMLwo And do let me know if you have any problems.
It might be difficult to persuade Turbo to eat nice weeds, as he is used to lettuce (which is easy to eat and sort of like junk food), so you can start by cutting the lettuce up into small pieces, wet it, and then cut some weeds (dandelions, sowthistle, plantain, campanula -- any edible plant) up into even smaller pieces and sprinkle a few of those onto the lettuce. The good plants will stick to the wet lettuce leaves so that when he goes for some lettuce he will get some of the other plants. Gradually decrease the amount of lettuce and increase the amount of good stuff until there is no more lettuce. They don't excrete urates every day, so I wouldn't worry too much about that.
Are you able to get him outdoors when it's warm (he will love it and the sun is the best source of UVB)?
As Turbo is only small, he won't be eating very much. A guideline on how much to feed him is as much as he can eat in 20 minutes, once a day, or enough leaves, flowers, etc. that would make a little blanket to cover his shell -- once a day. But the best way is to monitor his weight. Would your daughter like a complimentary copy of our Tortoise Observations Records Booklet? Its just a way to keep all your records in one place -- weight, change of equipment, illness, hibernation, vet details, etc. If you email me your name and address to
nina@thetortoisetable.org.uk I'll pop one in the post to you.
Finally, here is a link to a good care sheet for Hermann's tortoises if you don't already have one:
https://www.tortoise-protection-group.o ... 014New.pdf
I do apologise for such a long post, but I thought I would put everything into one post rather than dribs and drabs (I hope you aren't completely bored by now!). I do think that Turbo is very lucky to have found a home with a family who obviously love him and are doing their best to ensure he has a long and healthy life.
Nina