|
|
The purchase of a
very good whole of
MATTRESS and DIAGRID 60" X 80"
|
| Investment: 1000$ |
(approximately) |
| Damping: 15 years |
|
| at 8 hours per day (the third of our life) |
|
DURABILITY / COMFORT
|
| 56 |
hours by week |
| 244 |
hours by month |
| 2926 |
hours by year |
| 43896 |
hours for 15 years |
| INVESTMENT / PROFITABILITY
|
| 58.52$ |
by year |
| 4.88$ |
by month |
| 1.12$ |
by week |
| 0.16$ |
by night (0.02$ by hour) |
Less
expensive than a coffee per day,
which prevents you to him from sleeping! |
|
